iwlwifi: refactor tx aggregation response flow

This patch refactors tx aggregation respnse flow
and fixes bug revealed by tx_info to cb patch

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 8e7860d..510e403 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -1668,7 +1668,7 @@
 
 	IWL_DEBUG_RX("beacon status %x retries %d iss %d "
 		"tsf %d %d rate %d\n",
-		le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
+		le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK,
 		beacon->beacon_notify_hdr.failure_frame,
 		le32_to_cpu(beacon->ibss_mgr_status),
 		le32_to_cpu(beacon->high_tsf),